You can't. If something isn't documented, it isn't a "historic fact", it's speculation.
in what year was the first documented use of a Christmas tree in lativa
The first documented use of a Christmas Tree in world history was in 1510, in the capital city of Latvia - Riga.
Explain how scientist collect and use data to conduct a research
tangina
Please call collect at your convenience. This knick knack will just collect a lot of dust.
You use basic facts to do the division problem.
To collect info about competitor, you should use a SWOT matrix.
1510
1. Use facts 2. Tell a story 3. Incorporate historic quotes or events 4. Ask rhetorical questions
example: Chamomile has been documented to cause emesis.
The first documented use of the word "tornado" was in 1556.
You can use the Whisper App to make facts on Tumblr.